EXHIBIT 4  6.(b)


                      AMENDMENT NO. 2 TO CREDIT AGREEMENT



      Amendment No. 2 (the "Amendment") is dated as of June 1, 1993, among CBI
Industries, Inc., a Delaware corporation (the "Company"), each Specified
Subsidiary that becomes a party to the Credit Agreement pursuant to Section
1.4, the financial institutions listed on the signature pages of this
Amendment under the heading "Banks" (such financial institutions, and any
successor financial institution that becomes a party to the Credit Agreement
(as hereinafter defined) pursuant to Section 4.16 or 10.7 of the Credit
Agreement, being hereinafter referred to as the "Banks"), and Ibis Investment,
Inc., as bid advance agent under the Credit Agreement (such bid advance agent
and any successor bid advance agent appointed pursuant to Section 9.8 of the
Credit Agreement being hereinafter referred to as the "Bid Advance Agent").


                                  WITNESSETH

      WHEREAS, the parties to this Amendment entered into that certain Credit
Agreement dated as of December 4, 1992, as amended by Amendment No. 1 dated
January 11, 1993 (the "Credit Agreement");

      WHEREAS, the Company has requested a modification of the Current Ratio
covenant contained in Section 7.6 of the Credit Agreement, to be accomplished
by defining Consolidated Current Assets to include the unused portion of the
Commitment; and 

      WHEREAS, the Majority Banks and the Bid Advance Agent have consented to
an amendment to accomplish the above request.

      NOW, THEREFORE, in consideration of the terms and conditions set forth
herein, and for other good and valuable consideration, the receipt and
sufficiency of which is hereby acknowledged, the parties hereto agree as
follows:

      1.    Unless otherwise specified herein, capitalized terms used but not
            otherwise defined shall have the meaning ascribed thereto in the
            Credit Agreement.

      2.    The Credit Agreement is amended to redefine the terms
            "Consolidated Current Assets" and "Consolidated Current
            Liabilities" in Section 1.1 of the Credit Agreement, as follows:

            "Consolidated Current Assets and Consolidated Current Liabilities
            means such assets and liabilities of the Company and its
            Restricted Subsidiaries on a consolidated basis as shall be
            determined in accordance with generally accepted accounting
            principles to constitute current assets and current liabilities,
            respectively, provided that:
                  (a)   Consolidated Current Assets shall exclude the amount,
                        if any, by which earned revenues exceed related
                        progress billings, to the extent such item constitutes
                        an asset on the most recent balance sheet of the
                        Company;

                  (b)   Consolidated Current Assets shall include the amount,
                        if any, by which the total Commitment of the Banks
                        exceeds the sum of outstanding Borrowings under the
                        Credit Agreement plus all outstanding commercial paper
                        of the Company;

                  (c)   Consolidated Current Liabilities shall exclude the
                        amount, if any, by which progress billings exceed
                        related earned revenues to the extent that such items
                        constitutes a liability on the most recent balance
                        sheet of the Company; and

                  (d)   Consolidated Current Liabilities shall include all
                        Guaranties in respect of Current Debt."

      3.    Except as amended herein, all other terms of the Credit Agreement
            shall remain in full force and effect and are hereby ratified and
            confirmed as so amended.

      4.    This Amendment may be executed in any number of counterparts, each
            of which so executed shall be deemed an original, but all such
            counterparts shall constitute one and the same instrument.

      5.    This Amendment shall be governed by, and construed in accordance
            with, the internal laws (as distinguished from the conflicts of
            laws rules) of the State of Illinois.

      IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed and delivered by their proper and duly authorized officers as of
the day and year first written above.

                              CBI INDUSTRIES, INC.


                              By:   /s/ Buel T. Adams
                                    ______________________________________
                                    Buel T. Adams
                                    Vice President and Treasurer



                              IBIS INVESTMENTS, INC.

                              By:   Buel T. Adams
                                    _______________________________________
                                    Buel T. Adams
                                    Vice President and Treasurer

                              BANKS:

                              BANK OF AMERICA NATIONAL TRUST & SAVINGS       
                              ASSOCIATION

                              By:   /s/ Daniel J. Boote
                                    _______________________________________
                                    Daniel J. Boote
                                    Vice President

                              By:   /s/ M. Kathleen McVay
                                    _______________________________________
                                    M. Kathleen McVay
                                    Vice President


                              CONTINENTAL BANK N.A.

                              By:   /s/ G. William Marquardt
                                    ______________________________________
                                    G. William Marquardt
                                    Senior Vice President


                              ROYAL BANK OF CANADA

                              By:   /s/ Patricia A. Herbig
                                    ______________________________________
                                    Patricia A. Herbig
                                    Manager


                              BANK OF MONTREAL, CHICAGO BRANCH

                              By:   /s/ Hugh K. Brower
                                    ______________________________________
                                    Hugh K. Brower
                                    Director


                              THE NORTHERN TRUST COMPANY

                              By:   
                                    ______________________________________
                                    Elaine H. Moore
                                    Vice President


                              THE FIRST NATIONAL BANK OF CHICAGO

                              By:   /s/ Steven R. Fercho
                                    ______________________________________
                                    Steven R. Fercho
                                    Vice President

                              
                              CHEMICAL BANK

                              By:   /s/ Christopher C. Wardell
                                    ______________________________________
                                    Christopher C. Wardell
                                    Managing Director

                              ABN-AMRO BANK, N.V.

                              By:   /s/ John W. Stanger
                                    ______________________________________
                                    John W. Stanger
                                    Vice President

                              By:   /s/ Catheryn N. Fuller
                                    ______________________________________
                                    Catheryn N. Fuller
                                    Vice President


                              BARCLAYS BANK PLC

                              By:   
                                    ______________________________________
                                    Olga Georgiev
                                    Vice President

                              By:   
                                    ______________________________________
                                    Frank J. Sisinni
                                    Vice President


                              CREDIT LYONNAIS CHICAGO BRANCH

                              By:   /s/ Sandra E. Horwitz
                                    ______________________________________
                                    Sandra E. Horwitz
                                    Vice President


                              CREDIT LYONNAIS CAYMAN ISLAND BRANCH

                              By:   /s/ Sandra E. Horwitz
                                    ______________________________________
                                    Sandra E. Horwitz
                                    Authorized Signature


                              SOCIETE GENERALE

                              By:   /s/ Barbara S. Adelman
                                    ______________________________________
                                    Barbara S. Adelman
                                    Vice President

                              By:   /s/ Charles M. Pierron
                                    ______________________________________
                                    Charles M. Pierron
                                    Regional Manager


                              GULF INTERNATIONAL BANK

                              By:   /s/ Haytham F. Khalil
                                    ______________________________________
                                    Haytham F. Khalil
                                    Assistant Vice President

                              By:   /s/ Issa N. Baconi
                                    ______________________________________
                                    Issa N. Baconi
                                    Senior Vice President & Branch Manager